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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202402-32">
    <title>btrbk: Remote Code Execution</title>
    <synopsis>A vulnerability has been discovered in btrbk which can lead to remote code execution.</synopsis>
    <product type="ebuild">btrbk</product>
    <announced>2024-02-26</announced>
    <revised count="1">2024-02-26</revised>
    <bug>806962</bug>
    <access>remote</access>
    <affected>
        <package name="app-backup/btrbk" auto="yes" arch="*">
            <unaffected range="ge">0.31.2</unaffected>
            <vulnerable range="lt">0.31.2</vulnerable>
        </package>
    </affected>
    <background>
        <p>btrbk is a backup tool for btrfs subvolumes, taking advantage of btrfs specific capabilities to create atomic snapshots and transfer them incrementally to your backup locations.</p>
    </background>
    <description>
        <p>A vulnerability has been discovered in btrbk. Please review the CVE identifier referenced below for details.</p>
    </description>
    <impact type="normal">
        <p>Specialy crafted commands may be executed without being propely checked. Applies to remote hosts filtering ssh commands using ssh_filter_btrbk.sh in authorized_keys.</p>
    </impact>
    <workaround>
        <p>There is no known workaround at this time.</p>
    </workaround>
    <resolution>
        <p>All btrbk users should upgrade to the latest version:</p>
        
        <code>
          # emerge --sync
          # emerge --ask --oneshot --verbose ">=app-backup/btrbk-0.31.2"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-38173">CVE-2021-38173</uri>
    </references>
    <metadata tag="requester" timestamp="2024-02-26T12:53:03.371210Z">graaff</metadata>
    <metadata tag="submitter" timestamp="2024-02-26T12:53:03.375893Z">graaff</metadata>
</glsa>